barnes



y PATENTE@ (MAR 31868. x,

@uitrit vtert-es tttmtlffir.

Leners Parent No. 75,117, dated Mai-c7', 3, 186s.

IMPROVBMBNTIIN noTARYsrsAM-ENGINBS ililielgeule mmh iq itt-tiges: Atttxe'ts- .irtelx't tink milling parte! tige' time.

". r0 -ALL. 'iv-HOM! 1T MAY -CONCERG vBye itpknownthnt .we, J. S. B eIeeUn'r end T. I1.,'B.uu\:ns,`ot` Boonesbo're,.in the county of Boone," and State' -oflo'wm hm'e'invented a. newnnd ,useful Improvementiii Rota-ry Steznn-lmgines;',` and we do hereby (leclerc-.that the' following is full, clear, and exact description thereof, which will erlahlef others ,skilledjn .the art to make andnse the' same, reference being hnd t0 the accompanying drawings, forming p'art-ef'tl'r'is specification.

` This inventionrelrnte's to new 1nd improved devices for the pui-pose of producihg rotary-motion by stennfl';

enduit consists in an Vcecentric-wheel in nrsiitnble casing', which. wheel has offsets, and which casing has sliding vnlves, which nreactuated in ene direction hy springsrnd in the other direction hyltheperiphery of the eccentricwheehwhi'ch is r'otateilin the easing, as will beher'ein more fully described. Fjgre 1' represents a. vertical section of theengine throngh-'the line a: x of (fg. .2.

Figre 2 is n horizontal section ofg. 1 throughdthe" line-gj y. l .Similar lettersef reference indicate like perlas.

'Ais thecasil'ng of the-engine. is the revolving wheel. O C :ix-eth0 siennr-chsphers. D D are the pis'- tons, which are formed by the terxixination ofvtheeceentric-periphery of thosvheel, or hy the osets'i thelwheel.

E lere theslidin; veines, which work steam-'tight through the ease A, and thc inner ends of which, during the revolution `of-thewheel, are in close eontnct with. its4 periphery. F F are springs, which 4zneiatteched to' the valves and to' the casing, uslseen in the dre-wing, and which act' upon the'vnlves, 4crowding them on t0 oi' towards the lwheel with ncons'tant pressure. a a represent the steam'fportsgand e lathe exhaust-ports ollthe engine. v Y Gr is the engine-shaft, nponwhich the wheel B ls 4h nn'g'i'- H is o. lpulley onthe shnft. '.lhe'rlirection ofthe Arevelvi It 'will'he seenvthat the sten-meets eontinnepslyon the wheel, that one piston takes ste-am 'alittle before .the other, and .thnttihe steerm is e'xheusting from both chambers. -'lhe direction ofthe steam in and ont of the .ehnmbers is indicated by the arro\\'s.' l i In the revolution of the wheel, the pistons will heraised by the eccentric-periphery of the Wheel untill the o`set passes them, when thenction of the springs Efurces their; on to the' periphery again. The pistons, as

will ljeseenfform the ahutments against which the steam' acts.'- l 1 rlhe revolving wheelis packed by a ring;f ,seen atd, iig'. 1, whi'eh-pcking-rin-g is set up hy-seews e, nsscen -mfthe drawing. Ingt'eud of the spyngs 'Esteem may he. used npon the valves to vforce themfinvwdh iig-desired. v

-A' By this arrngeinent itfwillho noticed thu-t the .action of the st'enm upon th'epistons is constant, that there re no dead-centres as in the crankf'engine, -and consequently' no necessity {orally-wheel. l I

Wha't we claiin as new, and desirctolsecurchy Letters'uteut, s l

The. :i1-rangement of the'slidi-ng valves E--n'nrl' the springs F, \v.ith"'refercn`ce te the pst'onslDuD, ns herein l 

